Dave Grohl is back at it! It's been revealed that the Foo Fighters frontman has re-teamed with Nirvana bassist Krist Novoselic and 'Nevermind' producer Butch Vig in the studio.

Dave Grohl might not ever sleep. Between his work with Them Crooked Vultures and Foo Fighters, it seems like Dave has been at it non-stop these past few years. His latest project is a documentary on the legendary " yet now closed " Sound City Studios, a quiet little place in Los Angeles where legendary records like Nirvana's 'Nevermind' were recorded. Now Butch Vig has revealed that he has once again entered the studio to record Grohl and Novoselic, as well as an unidentified mystery guest.

The last 24 hours have been surreal! Had a great gig at the El Rey last night, and spent today recording with Dave, Krist and special guest!